Hey everyone, I'm trying to run a two-stage meta-analysis to generate a forest plot with individual participant data using ipdmetan to plot the odds of an event across several trials. Unfortunately, for the majority of trials, in one of the subgroups of interest, there were no events. Is there any way ipdmetan can adjust for zero-event meta-analysis to include these trials in the analysis? I can only see an option "keepall" to include the excluded studies in the forest plot. Reading the literature for zero event meta-analysis, some propose to put in 0.5 events in the subgroup of interest. Is there any way ipdmetan can handle this? Thank you!